Device convenient for measuring thickness of ladle slag layer
By designing a device for measuring the thickness of the molten iron inclusion layer, the problem of impurity detection in molten iron is solved, efficient and accurate measurement is achieved, and the labor intensity of the operator is reduced and iron consumption is reduced.
Patent Information
- Application Number
- CN202421787737.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-26
AI Technical Summary
During the blast furnace iron smelting process, the unmelted waste slag formed by impurities in the molten iron is difficult to accurately detect, resulting in time-consuming and labor-intensive operation, low efficiency, and problems such as operational risks and inaccurate data.
A device including a measuring rod, a measuring handle, a height adjustment disc and a measuring piece is designed. Through the height adjustment disc and the L-shaped slot structure, the thickness of the molten iron inclusion layer is achieved.
The device simplifies operation, improves measurement efficiency and accuracy, reduces labor intensity for slag-removing workers, shortens working time, reduces iron consumption, and creates economic benefits.
Smart Images
Figure CN222938424U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device capable of conveniently measuring the thickness of the slag layer of a hot metal ladle, belonging to the technical field of hot metal smelting measurement equipment. Background Art
[0002] During the ironmaking process in a blast furnace, some impurities form non-melting waste slag in the hot metal and float above the hot metal. The waste slag brought into the torpedo ladle during the tapping process of the blast furnace enters the hot metal ladle on the iron ladle car in the steelmaking plant and then enters the converter, where the waste slag needs to be removed. To remove the waste slag, it is necessary to sample and measure the temperature of the hot metal, and through chemical analysis, inform the converter front operation room of the composition and temperature of the hot metal. The converter front operation room determines the charging amount, slag addition amount, and operation mode of this furnace based on the composition and temperature of the hot metal. The content of SiO2, S, etc. in the slag brought by the hot metal is relatively high, which will cause an increase in the consumption of lime in the converter, an increase in the slag volume, easy splashing, an increase in metal loss, and affect the dephosphorization of the converter. Therefore, it is necessary to detect the slag content of the hot metal.
[0003] Currently, during daily operation, it is not easy to detect the slag content of the hot metal. When the slag amount in the hot metal is large, the method of skimming the slag is often adopted, and skimming the slag requires manual removal of the waste slag from the hot metal. The skimming operation is time-consuming and laborious, with low skimming efficiency. It is difficult to determine whether the slag amount exceeds the standard requirements in a short time, which is not conducive to the production organization of the steelmaking plant and has certain risks. Therefore, how to design a measuring tool for the thickness of the hot metal slag layer is an urgent problem to be solved. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a device for conveniently measuring the thickness of the slag layer of a hot metal ladle, which can overcome technical problems such as large heat radiation of the hot metal in a large-capacity ladle, low measurement efficiency of the hot metal slag thickness, high operation risk, untimely data feedback, and inaccurate data reading, reduce the labor intensity of operators, shorten the operation time, and improve the measurement accuracy and work efficiency.
[0005] The technical solution for solving the above technical problem is:
[0006] A device for conveniently measuring the thickness of the slag layer in a molten iron ladle, which includes a measuring rod, a measuring handle, a height adjustment disc, and a measuring piece. The measuring rod is a vertical round steel rod. The measuring handle is fixed at the upper end of the measuring rod. The height adjustment disc is a disc with an inner hole at its center. The inner hole of the height adjustment disc is sleeved on the wall of the measuring rod, and the inner hole of the height adjustment disc and the wall of the measuring rod are in sliding fit. There is an inverted L-shaped card slot at the lower part of the measuring rod. The long slot of the L-shaped card slot opens on the wall of the measuring rod along the length direction of the measuring rod, and the depth of the long slot in the measuring rod corresponds to the central axis of the measuring rod. The short slot of the L-shaped card slot opens on the wall of the measuring rod along the circumferential direction of the measuring rod, and the short slot is perpendicular to the long slot. The measuring piece is a straight rod, and a horizontal bolt is welded at the upper end of the straight rod. The width of the straight rod of the measuring piece matches the width of the long slot of the L-shaped card slot on the wall of the measuring rod, and the straight rod of the measuring piece is embedded in the long slot. The width of the bolt of the measuring piece matches the width of the short slot of the L-shaped card slot on the wall of the measuring rod, and the bolt of the measuring piece is embedded in the short slot.
[0007] For the above device for conveniently measuring the thickness of the slag layer in a molten iron ladle, the diameter of the height adjustment disc is greater than the diameter of the measuring hole on the measuring platform. The height adjustment disc is placed above the measuring hole. An adjusting nut is welded on the disc surface of the height adjustment disc, and the axis of the adjusting nut is perpendicular to the axis of the measuring rod. An adjusting bolt is fitted on the adjusting nut, and the front end of the adjusting bolt is tightly connected to the side wall of the measuring rod.
[0008] The beneficial effects of the present utility model are as follows:
[0009] The structure of the present utility model is simple, with low manufacturing cost and convenient operation. It successfully solves technical problems such as large thermal radiation of molten iron in a large-capacity ladle, low measuring efficiency of the thickness of molten iron slag, high operation risk, untimely data feedback, inaccurate data reading, etc. It effectively reduces the number of ladles for slag skimming, greatly reduces the labor intensity and workload of slag skimming operators, significantly shortens the labor time, improves work efficiency, and can avoid the inaccuracy of the original slag skimming method, reduce iron consumption, and create good economic benefits. After calculation, the annual efficiency improvement reaches more than 1.5 million yuan. Description of the Drawings
[0010] Figure 1 is the structural schematic diagram of the present utility model;
[0011] Figure 2 is the front view of the measuring rod;
[0012] Figure 3 is the front view of the measuring piece.
[0013] The markings in the figure are as follows: molten iron ladle car 1, molten iron ladle 2, molten iron liquid level 3, measuring platform 4, measuring hole 5, measuring rod 6, measuring handle 7, height adjustment disc 8, L-shaped card slot 9, long slot 10, short slot 11, measuring piece 12, bolt 13, adjusting nut 14, adjusting bolt 15. Specific embodiments
[0014] The utility model is composed of a measuring rod 6, a measuring handle 7, a height adjusting disc 8, an L-shaped card slot 9, and a measuring piece 12.
[0015] Figure 1 、 2 As shown, the measuring rod 6 is a vertical round steel rod. The measuring handle 7 is fixed at the upper end of the measuring rod 6. There is a height adjusting disc 8 that can adjust the height in the middle of the measuring rod 6. There is an inverted L-shaped card slot 9 on the lower pipe wall of the measuring rod 6.
[0016] Figure 2 As shown, the long slot 10 of the L-shaped card slot 9 on the wall of the measuring rod 6 opens on the outer wall of the measuring rod 6 along the length direction of the measuring rod 6. The depth of the long slot 10 inside the measuring rod 6 corresponds to the central axis of the measuring rod 6. The short slot 11 of the L-shaped card slot 9 opens on the outer wall of the measuring rod 6 along the circumferential direction of the measuring rod 6. The short slot 11 is perpendicular to the long slot 10.
[0017] Figure 1 、 3 As shown, the measuring piece 12 is a straight rod. A horizontal bolt 13 is welded at the upper end of the straight rod. The width of the straight rod of the measuring piece 12 matches the width of the long slot 10 of the L-shaped card slot 9 on the outer wall of the measuring rod 6. The straight rod of the measuring piece 12 is embedded in the long slot 10. The width of the bolt 13 of the measuring piece 12 matches the width of the short slot 11 of the L-shaped card slot 9 on the outer wall of the measuring rod 6. The bolt 13 of the measuring piece 12 is embedded in the short slot 11.
[0018] Figure 1 、 2 As shown, the height adjusting disc 8 is a disc. The diameter of the height adjusting disc 8 is larger than the diameter of the measuring hole 5 of the measuring platform 4. The height adjusting disc 8 is placed above the measuring hole 5. There is an inner hole in the center of the height adjusting disc 8. The inner hole of the height adjusting disc 8 is sleeved on the outer wall of the measuring rod 6. The inner hole of the height adjusting disc 8 and the outer wall of the measuring rod 6 are in sliding fit. An adjusting nut 14 is welded on the disc surface of the height adjusting disc 8. The axis of the adjusting nut 14 is perpendicular to the axis of the measuring rod 6. An adjusting bolt 15 is fitted on the adjusting nut 14. The front end of the adjusting bolt 16 contacts the side wall of the measuring rod 6. By turning the nut of the adjusting bolt 15 with a wrench, the adjusting bolt 15 can be tightly connected to the measuring rod 6, so as to fix the height position of the height adjusting disc 8 on the measuring rod 6.
[0019] Figure 1 As shown, the using process of the utility model is as follows:
[0020] First, insert one end of the welding bolt 13 of the measuring piece 12 along the long slot 10 of the L-shaped slot 9 of the measuring rod 6. One side of the measuring piece 12 is closely attached to the bottom surface of the L-shaped slot 9. When the bolt 13 reaches the position opposite to the short slot 11 of the L-shaped slot 9, rotate the measuring piece 12 by 90 degrees, and the bolt 13 at the upper end of the measuring piece 12 is embedded into the short slot 11 of the L-shaped slot 9;
[0021] The operator holds the measuring handle 7 and inserts the measuring rod 6 into the measuring hole 5 of the measuring platform 4, ensuring that the height adjustment disk 8 is closely attached to the measuring hole 5 on the measuring platform 4;
[0022] Then, adjust the height of the height adjustment disk 8 in the middle of the measuring rod 6. The operator can turn the nut of the adjusting bolt 15 with a wrench to make the adjusting bolt 15 tightly connected to the measuring rod 6, thereby fixing the height position of the height adjustment disk 8 on the measuring rod 6. According to the actual distance between the molten iron surface 3 and the measuring platform 4, and the actual operation requirements that the measuring device is vertically inserted into the ladle 2 and the measuring piece 12 is inserted into the slag layer and into the molten iron, adjust the position of the height adjustment disk 8 on the measuring rod 6 to control the depth of the measuring piece 12 inserted into the ladle 2;
[0023] The operator inserts one end of the welding bolt 13 of the measuring piece 12 along the long slot 10 of the L-shaped slot 9 of the measuring rod 6. One side of the measuring piece 12 is closely attached to the bottom surface of the L-shaped slot 9. When the bolt 13 reaches the position opposite to the short slot 11 of the L-shaped slot 9, rotate the measuring piece 12 by 90 degrees, and the bolt 13 at the upper end of the measuring piece 12 is embedded into the short slot 11 of the L-shaped slot 9
[0024] Then, the operator holds the measuring handle 7 and inserts the measuring rod 6 into the measuring hole 5 of the measuring platform 4. According to the actual distance between the molten iron surface 3 and the measuring platform 4, and the actual operation requirements that the measuring device is vertically inserted into the ladle 2 and the measuring piece 12 is inserted into the slag layer and into the molten iron, adjust the height of the height adjustment disk 8 in the middle of the measuring rod 6, ensuring that the height adjustment disk 8 is closely attached to the measuring hole 5 on the measuring platform 4;
[0025] Finally, measure the thickness of the slag layer in the ladle 2. Vertically insert the measuring device into the ladle 2, ensure that the measuring piece 12 is inserted into the slag layer and into the molten iron, and after staying in the molten iron for 4 - 7 seconds, pull it out for detection. Use a ruler to measure the length of the molten iron with slag attached to the surface of the measuring piece 12, and the thickness of the molten iron with slag layer can be measured and recorded.
[0026] An embodiment of the present utility model is as follows:
[0027] The diameter of the measuring rod 6 is 50 mm and the length is 3000 mm;
[0028] The diameter of the measuring handle 7 is 100 mm;
[0029] The diameter of the height adjustment disc 8 is 150 mm, and the inner hole diameter is 55 mm;
[0030] The length of the long slot 10 of the L-shaped card slot 9 is 150 mm, the width is 30 mm, and the depth is 25 mm. The length of the short slot 11 is 25 mm, the width is 20 mm, and the depth is 25 mm;
[0031] The length of the measuring piece 12 is 800 mm, the width is 30 mm, and the thickness is 25 mm. The length of the bolt 13 is 25 mm, the width is 20 mm, and the thickness is 20 mm.
Claims
1. A device for conveniently measuring the thickness of the slag layer of a molten iron ladle, characterized in that: The invention comprises a measuring rod (6), a measuring handle (7), a height adjustment disk (8), and a measuring piece (12). The measuring rod (6) is a vertical round steel rod. The measuring handle (7) is fixed to the upper end of the measuring rod (6). The height adjustment disk (8) is a circular disk. The center of the height adjustment disk (8) has an inner hole. The inner hole of the height adjustment disk (8) is sleeved on the outer wall of the measuring rod (6). The inner hole of the height adjustment disk (8) and the outer wall of the measuring rod (6) are slidably matched. The lower part of the measuring rod (6) has an inverted L-shaped slot (9). The long slot (10) of the L-shaped slot (9) opens on the outer wall of the measuring rod (6) along the length direction of the measuring rod (6). The depth of the long slot (10) in the measuring rod (6) is the same as that of the measuring rod (6). ), the short groove (11) of the L-shaped groove (9) opens on the outer wall of the measuring rod (6) along the circumferential direction of the measuring rod (6), the short groove (11) is perpendicular to the long groove (10), the measuring piece (12) is a straight rod, the upper end of the straight rod is welded with a horizontal clamping bolt (13), the width of the straight rod of the measuring piece (12) matches the width of the long groove (10) of the L-shaped groove (9) on the outer wall of the measuring rod (6), the straight rod of the measuring piece (12) is embedded in the long groove (10), the width of the clamping bolt (13) of the measuring piece (12) matches the width of the short groove (11) of the L-shaped groove (9) on the outer wall of the measuring rod (6), and the clamping bolt (13) of the measuring piece (12) is embedded in the short groove (11).
2. The device for conveniently measuring the thickness of the slag layer of the molten iron ladle according to claim 1, characterized in that: The diameter of the height adjustment disk (8) is larger than the diameter of the measuring hole (5) of the measuring platform (4). The height adjustment disk (8) is placed above the measuring hole (5). An adjustment nut (14) is welded on the disk surface of the height adjustment disk (8). The axis of the adjustment nut (14) is perpendicular to the axis of the measuring rod (6). An adjustment bolt (15) is mounted on the adjustment nut (14). The front end of the adjustment bolt (15) is tightly connected to the side wall of the measuring rod (6).